Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Efficient anaerobic digestion reactor and use method

An anaerobic digestion and reactor technology, applied in biochemical equipment and methods, gas production bioreactors, solid-phase fermentation bioreactors, etc., can solve problems such as failure to achieve efficient treatment of organic waste, and achieve no fermentation Dead zone, high utilization rate, solid structure effect

Pending Publication Date: 2020-08-07
BIOGAS SCI RES INST MIN OF AGRI
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned reactor only realizes the continuous operation of dry anaerobic digestion, and fails to realize the efficient treatment of organic waste

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Efficient anaerobic digestion reactor and use method
  • Efficient anaerobic digestion reactor and use method
  • Efficient anaerobic digestion reactor and use method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Continuous anaerobic digestion is carried out with dry pig manure from pig farms as raw material.

[0061] Add the inoculum according to the mass ratio of 10:1, and mix well; the solid content of the inoculum is 20%, and the number of methanogenic bacteria cells is 1.9×10 8 cells / g, the total number of microbial cells shall not be less than 1.2×10 9 pcs / g. The solid content of raw material after inoculation is about 25.5%.

[0062] The high-efficiency anaerobic digestion reactor tank has a diameter of 48cm and a height of 120cm, of which the bottom of the tank is 10cm high, the diameter of the discharge port is 10cm, and the total volume of the reactor is 216L. Add 81 kg of raw materials on the first day of anaerobic digestion, set the temperature of the warming and heat preservation system at 35°C, and set the operating parameters of raw material stirring at 1 time / day, 5 minutes / time, 30 rpm; from the 11th day 8.1kg of raw materials are added every day but no mater...

Embodiment 2

[0069] Continuous anaerobic digestion was carried out with the mixture of chicken manure and air-dried rice straw as raw material.

[0070] First, the air-dried rice straw is pretreated by crushing, and the particle size is about 3 mm. Fully mix chicken manure, pretreated straw, and water at a mass ratio of 4:1:1 to obtain a mixed raw material.

[0071] Then add the inoculum according to the mass ratio of 5:1, and fully mix; the solid content of the inoculum is 18.5%, and the number of methanogenic bacteria cells is 1.3×10 8 cells / g, the total number of microbial cells is 1.1×10 9 pcs / g. The solid content of raw material after inoculation is about 22.3%.

[0072] The high-efficiency anaerobic digestion reactor tank has a diameter of 48cm and a height of 120cm, of which the bottom of the tank is 10cm high, the diameter of the discharge port is 10cm, and the total volume of the reactor is 216L. Add 81kg of raw materials on the first day of anaerobic digestion, set the temper...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention provides an efficient anaerobic digestion reactor and a use method. The reactor consists of a tank cover, a tank body and a tank bottom, wherein exhaust port is formed in tank cover, exhaust port and exhaust pipe connection, the exhaust valve is mounted on the exhaust port; wherein the exhaust pipe is connected with an external gas collection system, the tank cover is provided with afeeding port, the feeding valve is installed on the feeding port, the feeding port is connected with an external feeding device, the middle portion of the tank cover is provided with a gear motor, the gear motor is located outside the tank cover, and the gear motor is connected with a transmission shaft through a coupler. The anaerobic digestion reactor disclosed by the invention is suitable foranaerobic digestion treatment of organic wastes with different dry matter contents; the highest anaerobic digestion concentration can reach 30%; therefore, it is guaranteed that the organic waste is rapidly degraded under different anaerobic digestion concentrations, so that the reactor efficiently and stably operates, innovation of the process route is achieved, and the treatment efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of fermentation equipment, and in particular relates to a high-efficiency anaerobic digestion reactor and a use method. Background technique [0002] Anaerobic digestion is the most environmentally friendly treatment technology for solid waste such as crop straw, livestock manure, urban sludge, kitchen waste, and organic domestic waste. Through anaerobic digestion, solid organic waste can be "reduced, harmless, and resourced". [0003] Although dry anaerobic digestion has the advantages of low construction and operation costs, simple pre- and post-treatment processes, and high efficiency, wet anaerobic digestion is still the main process currently used, mainly because the wet anaerobic digestion process is mature and has supporting equipment; Due to equipment constraints, dry-type anaerobic digestion projects mainly adopt sequential batch technology, and there are few continuous dry-type anaerobic digestion...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/38C12M1/36C12M1/16C12M1/107C12M1/02C12M1/00C02F11/04C12P5/02
CPCC12M21/04C12M21/16C12M27/02C12M29/20C12M39/00C12M41/22C12M41/48C12M41/42C12M41/44C02F11/04C12P5/023Y02E50/30
Inventor 李强邓宇尹小波邓雅月周正代莉蓉
Owner BIOGAS SCI RES INST MIN OF AGRI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com